Tool attachment.



R. N. BAYLIS. TOOL ATTACHMENT. APPLICATION FILED MAR. a, 1915.

Patented Mar. 14, 1916.

5] nue ntoz FOZV'f 11 B a 1 14 s Wit mane o ROBERT N. BAYLIS, 0FCALDWELL, NEW JERSEY.

TOOL ATTACHMENT.

Specification of Letters Patent.

Patented Mar. 14, 1.916.

Application filed March 3, 1915. Serial No. 11,800.

To all whom it may concern:

Be it known that I, ROBERT N. BAYLIS, a citizen of the United States,residing at Caldwell, Essex county, State of New Jersey, have inventedcertain new and useful Improvements in Tool Attachments, of

which the following is a full, clear, and exact description.

My invention relates to improvements in vacuum cleaning apparatus andparticularly to improved tool attaching means.

In the drawings: Figure 1 is a side elevation on a relatively reducedscale of the socalled cleaning tool of a vacuum cleaning apparatus. Fig.2 is a relatively enlarged longitudinal section of the lower end of theparts shown in Fig. 1, said section'being in a longitudinal plane atright angles to the plane of the line 22 of Fig. 1. Fig. 3 is across-section on the line 8-3 of Fig. 2. Fig. i is a similar view of amodification.

1 represents the operators handle which is in'the form of a tube, to therear end of which is connected at flexible hose 2 leading to the Vacuumcreating mechanism (not shown). The tubular handle 1 may be in one pieceor of pointed sections, as desired. At the lower end of the tubularhandle is the cleaning tool 3. These cleaning tools 3 are provided in avariety of designs or styles which are interchangeably connected withthe tube 1. It is desirable that the connection should be eifective andat the same time free enough to permit the parts to partake ofrelatively rotative movement.

I have illustrated my invention in certain preferred forms. In' the formshown in Figs. 2 and 3 I providea leaf spring 4 curved so that it may beinserted within the lower end of the tube 1, the said spring beingprovided at some suitable point with an outwardly projecting detent 5,designed to project through an opening in the tube 1, Which detent, inthis embodiment, is integral therewith. The inner wall of the socket inthe shank of the tool '3 wherein the tube 1 is inserted, is providedwith a transverse recess or groove which is preferably annular and sopositioned as to receive the detent 5 when the tube is pushed into placewithin the tool shank 3. The tube may ,be provided with a positioningshoulder .6. Each of the tools of difl'erent design may have its tubularshank similarly constructed so as to receive the tube 1 and the detent5. By this arrangement the tube 1 may fit 'with comparative freedomWithin the tool shank so that an easy swivel action may be obtained,when an annular groove or recess is employed, and so that at the sametime the parts are securely held together in cooperative relation by thedetent 5 and the wall of the groove in which it stands.

In the modification shown in Fig. 4, the detent is in the form of asteel ball 5 which projects partly through the opening in the side wallof the tube 1 and is backed up by the spring 4 so as to be forcedoutwardly in the same manner as the detent 5. By the simple arrangementshereinbefore described, the passage through the pipe 1 is in no waysubstantially interfered with and yet a powerful spring actionisprovided for the tool engaging detent. Again by my invention theimprovement may be easily associated with existing tools atcomparatively small expense. This improved connection may be employed atany convenientpoint; for example, the hose 2 may be provided with asimilar connection, and indeed if the operators tubular handle 1 is madeof sections, such sections may likewise be provided with said holdingmeans. I mention this as I desire to have it understood that in thebroadest sense this connection is applicable to anyone of the joints inthe tool and hose connections between the nozzle end and the vacuumcleaning device itself.

What I claim, therefore, and desire to secure by Letters Patent is:

1. In an attachment of the character described, two tubular members, onebeing arranged to enter the other, the external member having a recessin its inner wall facing the outer wall of the internal member, a sideaperture in the inner member, a detent projecting partially through saidaperture and arranged to yieldingly project into said recess in theexternal member, and a fiat C-shaped expansion spring closely fittingthe inner wall of the inner member and held 1 under compression thereby,and cooperating I Q I 1,175,402

and means for yieldingly holding said dethe same and arranged tofrictionally engage tent in said position, said means comprising theinner Wall of the other member, and a a fiat expansion spring locatedwithin said flat C-shaped expansion spring closely fit- 15 internaltubular member and held under ting the inner Wall of the inner memberand tension by the surroundin Wall thereof held under compressionthereby, said s rin b 7 P g said detent comprising a steel ball ofgreater 5 cooperating with said detent to press the diameter than thediameter of said aperture-f same outwardly into engagement with said Ina vacuum cleaning apparatus, a tool external member.

comprising two members, one telescopic ROBERT NG'BAYLIS.

within theother, the internal member hav Witnesses:

ing a side aperture, a detent located in said HENDERSON F. HILL,

aperture and projecting partially through CHARLES J. HACHENBERG.

